Although he is very old,_ he works very hard. A. and B. but C./ D. so 查看更多

 

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Although he is very old, _________ he works very hard.

A.and                  B.but                 C./                 D.so

 

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Mr. Brown is 70 this year. Although he is very old, ____ he works very hard.

     A. and   B. but   C. so   D. /

 

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改错。(在原句画线并改正错误)
1.  Although he is very old, but he still exercises every day.
2.  Because he is helpful, so he often helps others.
_______
_______

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Although he is very old, ______ he works very hard.

A. and          B. but            C. so               D. /

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Although he is very old, _____ he works very hard.

[     ]

A. and     
B. but
C. /     
D. so

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